http://demos.telerik.com/aspnet-ajax/treelist/examples/overview/defaultcs.aspx

Hi,

We are using Telerik UI WinForms in our project. Current built-in themes are not suitable for our project requirements. We need Visual Studio 2019 Theme for UI WinForms.

As mentioned in the Telerik blog, the latest R3 2019 release of Telerik UI for WPF and Telerik UI for Silverlight is having Visual Studio 2019 Theme.

When can we expect Visual Studio 2019 Theme for UI WinForms? 

FIX. RadPageView - newly added page should be automatically selected in the properties window in design time
Comment: When the above is implemented and a new page is added the following happens:
1. The RadPageView smart tag menu is closed
2. The new page is selected (the new page is a different component)
3. The smart tag menu of the new page is opened.
This actually breaks the user experince instead of making it better.

FIX. RadPageView the isContentVisible property should work in all modes.

RESOLUTION: This property should work only in ExplorerBar mode by design.

Hi guys,

              It would be great to be able to set the day start/finish times in your Scheduler.

Your Scheduler control is fantastic, but I am building a Scheduler for a company that operates over 24hrs and the shift hours are

6am - 6pm

6pm - 6am

both shifts are classed as being the same day even though the nightshift crosses over to the next day.

 

I would like to be able to adjust the 24hr period that defines a day so that in month view the appointment will not carry over to the next shift.

and in day view, the schedule will start at 6am and go through to 6am.

If you could implement this, your scheduler control would be even more powerful and awesome.

Thanks!

   

I have a form which contains TreeView control. I need to convert it to RadTreeView. So I replaced TreeView control with RadTreeView and TreeNode with RadTreeNode in the code. I found that the events in both are different, so tried to replace the events with similar events in RadTree.

Following are the events that I have replaced in my code :

1.  

        Private Sub TreeView1_AfterExpand(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles tvMain.AfterExpand

Replaced by -

        Private Sub TreeView1_AfterExpand(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.RadTreeViewEventArgs) Handles tvMain.NodeExpandedChanged   

2.

            Private Sub TreeView1_AfterCollapse(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles tvMain.AfterCollapse

  Replaced by -  

            Private Sub TreeView1_AfterCollapse(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.RadTreeViewEventArgs) Handles tvMain.NodeExpandedChanged

and included Expanded flag to check if it is expand or collapse.

Here, I noticed unwanted firing of this replaced event when compared to the old event, but I handled it using the Expanded flag.

3.

        Private Sub tvMain_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles tvMain.AfterSelect

Replaced by -

        Private Sub tvMain_AfterSelect(ByVal sender As System.Object, ByVal e As Telerik.WinControls.UI.RadTreeViewEventArgs) Handles tvMain.SelectedNodesChanged

This event gets fired twice while clicking on a node.

My main issues are,

• During the initial load of the form, the tree gets populated and at that time the select event (mentioned in point 3) fires automatically in my old project in which TreeView is used. But in the new project, during the load of the form the replaced event is not fired.
• Similarly, when I clicks a node , the replaced select event fires twice. After that I have a button in the same form which works like, when we click on a node and then click on the add button it will add a new node to the tree under the selected node. Now the functionality of the button doesnt work because, within the click function of add button, treeView1.selectedNode is 'Nothing'. Eventhough the select event is fired on clicking the node, the selectednode is 'Nothing' inside the click function of add button.

Hi Dess,

I have encountered some other issue here. text of the button is not displaying in this case.

I have set DrawText property as true, UseCompatibleTextRendering as true and TextImageRelation as true. still the text is not displaying only the image is showing. Could you please go thruogh the same project again

 

attaching the previous link https://feedback.telerik.com/winforms/1480197-event-not-firing-in-commandbar-button-in-radcommandbar-button

Thanks

Binshidha

CaptionTextFont property does not work. It should set the font of the OutLookStyle's caption and the font of the groups' headers.

Use attached to reproduce.

1. Select the ColorBox's ellipses to open the Color Dialog

2. Select the Web tab

3. Select Any colour in this Page

4. Select Transparent

Colour will update

5. Select the Professional tab

6. Select any colour

Colour won't update

7. Select any colour

Colour won't update

8. Select OK on Dialog

Colour will be transparent

Values will be same as selected in step 7

The filter UI controls in ASP.NET Core and MVC are really nice, see filter. Can you include the same controls and UI be included in Winforms and WPF?

Add the ability to add a richTextBox cell type to the RadGridView and have the ability to link it to a data source and to a RichTextEditorRibbonBar.

System.Reflection.TargetInvocationException:“Exception has been thrown by the target of an invocation.”

XamlParseException: “类型“Telerik.WinForms.Documents.Model.RadDocument”不具有内容属性。指定要设置的属性的名称，或者在该类型上添加 ContentPropertyAttribute 或 TypeConverterAttribute。”，行号为“5”，行位置为“4”。

Hi,

 

I added a screen with RadSpreadsheet on it. When I open that screen from the parent screen, the DPI (scale) of the whole application changes.

 

Please find the source in the attachment.

# Vulnerability Report: Account Takeover via Email Change Functionality

## Summary:
During security testing of the email change functionality on the Telerik website, it was discovered that the application can be vulnerable to an account takeover attack. The vulnerability allows an attacker to change the email address associated with an account to their own email address, effectively taking over the victim's account.

## Vulnerability Details:
- **Functionality Description:**
  - The Telerik website provides a functionality for users to request a change in their email address.
  - This functionality consists of two sections: current email and new email.
  - The current email is not accessible from the user interface, while the new email can be inputted by the user.
  - After inputting the new email and clicking the "Change Email" button, the user's request is processed.

- **Attack Scenario:**
  1. **Attacker Inputs Their Email:** The attacker inputs their own email address in the new email section.
  2. **Intercepting the Request:** Using interception tools, the attacker intercepts the request before it is sent to the server.
  3. **Modifying the Request:** The attacker modifies the request to replace their own email address with the victim's email address in the current email section.
  4. **Consent Form Manipulation:** Additionally, the attacker can manipulate the consent form associated with the email change request to gain access to the victim's account without their consent.
  5. **Changing the Email Address:** The modified request is forwarded to the server, resulting in the victim's email address being changed to the attacker's email address.



## Impact:
- **Account Takeover:** The vulnerability allows an attacker to take over the victim's account by changing the email address associated with it.
- **Data Access:** Once the attacker gains access to the victim's account, they may have unauthorized access to sensitive data and functionalities associated with the account.

## Mitigation Recommendations:
- **Input Validation:** Implement strict input validation to ensure that only legitimate email addresses are accepted in the new email section.
- **Consent Verification:** Require additional verification steps, such as email confirmation or user authentication, before processing email change requests.
- **Session Management:** Implement session management mechanisms to detect and prevent unauthorized access to account settings and functionalities.
- **Security Awareness:** Educate users about the risks of phishing attacks and social engineering tactics used by attackers to gain unauthorized access to accounts.

## Affected URL:
- Email Change Functionality: [https://www.telerik.com/account/support-center/email-change](https://www.telerik.com/account/support-center/email-change)

## Conclusion:
The discovered vulnerability poses a significant security risk to Telerik website users by allowing attackers to take over accounts through manipulation of the email change functionality. It is imperative for the development team to address this vulnerability promptly by implementing appropriate security controls and mitigations to safeguard user accounts from unauthorized access.

**Best Regards,**
Sagar Dhoot

This exception is a result of changes in the Current property of the IEnumerator interface. With the lastest version, if the current item is undefined it will throw an exception if we try to access it with the Current property, while in the older version, it will return null.

Hi- When I add a Rad context menu to a RadToolbarForm, the toolbar vanishes from the designer after a build.  This is new behavior because I have other context menus that I had previously added to the form.  If I drag a RadContextMenu from the toolkit, or I copy/paste an existing context menu, the toolbar disappears after a build.  I am running the latest release (2024.1.130) and toolkit config (although this also happens when running the previous Telerik release)

I tried closing the designer before the build and the toolbar still disappears.  Doing a Clean before build has no effect.  This form is inherited from a simple RadToolbar form (no controls except the toolbar).  The toolbar is still listed in the list of controls for the form

Ha!  Just found out what's happening.  It's deleting the toolbar configuration code from the designer code.  Everything below is gone.  If I add it back in, then do anything with the new context menu, like rename it, it gets removed again

            // 
            // RadToolbarFormControl1
            // 
            RadToolbarFormControl1.AutoSize = false;
            RadToolbarFormControl1.CenterItems.AddRange(new Telerik.WinControls.RadItem[] { RadLabelElement1, RadButtonElement_Task_New, RadButtonElement_Task_Edit, RadButtonElement_Task_Delete, RadCheckBoxElement_ShowCompleted });
            RadToolbarFormControl1.CenterItemsVerticalAlignment = Telerik.WinControls.UI.RadVerticalAlignment.Bottom;
            RadToolbarFormControl1.FarItems.AddRange(new Telerik.WinControls.RadItem[] { RadLabelElement_WorkHours, RadLabelElement_Work_StartDate, RadLabelElement_Work_EndDate, RadButtonElement_SelectDates, RadButtonElement_Invoices, RadButtonElement_Summary });
            RadToolbarFormControl1.NearItems.AddRange(new Telerik.WinControls.RadItem[] { RadLabelElement2, RadLabelElement_Projects, RadButtonElement_New, RadButtonElement_Edit, RadButtonElement_Delete, RadButtonElement_Refresh });
            RadToolbarFormControl1.ShowText = false;
            RadToolbarFormControl1.Size = new Size(1804, 52);

 

Here's my dev environment:

Microsoft Visual Studio Community 2022
Version 17.8.7
VisualStudio.17.Release/17.8.7+34601.278
Microsoft .NET Framework
Version 4.8.09037

Installed Version: Community

ActiveReports 16   16.3.1.0
The first report writer for Microsoft .NET

ASP.NET and Web Tools   17.8.358.6298
ASP.NET and Web Tools

Azure App Service Tools v3.0.0   17.8.358.6298
Azure App Service Tools v3.0.0

C# Tools   4.8.0-7.23572.1+7b75981cf3bd520b86ec4ed00ec156c8bc48e4eb
C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Code Converter   1.0
Code Converter Extension Details

Common Azure Tools   1.10
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

Microsoft JVM Debugger   1.0
Provides support for connecting the Visual Studio debugger to JDWP compatible Java Virtual Machines

NuGet Package Manager   6.8.1
NuGet Package Manager in Visual Studio. For more information about NuGet, visit https://docs.nuget.org/

Progress Telerik UI for WinForms Extension   2023.3.1110.93
Progress® Telerik® UI for WinForms Extension

TypeScript Tools   17.0.20920.2001
TypeScript Tools for Microsoft Visual Studio

Visual Basic Tools   4.8.0-7.23572.1+7b75981cf3bd520b86ec4ed00ec156c8bc48e4eb
Visual Basic components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Visual F# Tools   17.8.0-beta.23475.2+10f956e631a1efc0f7f5e49c626c494cd32b1f50
Microsoft Visual F# Tools

Visual Studio IntelliCode   2.2
AI-assisted development for Visual Studio.

 

PerformClick method of RadButtonElement is sending next error:

System.InvalidCastException: 'Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.MouseEventArgs'.

Find my code below:

private void btnAddField_Click(object sender, EventArgs e)
{
    RadDiagramShape sourceShape = new RadDiagramShape()
    {
        Text = "source",
        Shape = new RoundRectShape(5),
        BackColor = Color.Red
    };

    sourceShape.Position = new Telerik.Windows.Diagrams.Core.Point(150, 100);
    radDiagram.AddShape(sourceShape);

    sourceShape.IsSelected = true;
    RadButtonElement additionalContent = Telerik.WinControls.UI.Diagrams.Primitives.ItemInformationAdorner.GetAdditionalContent(
                                            this.radDiagram.DiagramElement.ItemInformationAdorner) as RadButtonElement;

    additionalContent.PerformClick();
}

What I want is to display the SettingsPane automatically when adding a RadDiagramShape item in a RadDiagram

Regards

Hi Dinko and Team,

As I mentioned in the previous forum, We need fix for Raddropdownlist.SelectedIndex.

When we set SelectedIndex=5 or some value in selectedIndexchangedEvent then the recursive call is happening for SelectedIndex. So we need to restrict the recursive call for both Raddropdownlist.DataSource as well as Raddropdownlist.SelectedIdex.

  private void radDropDownList1_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e)
        {
           fillIndustryProcess1(); // radDropDownList1.DataSource = dt; when we set Datasource the recursive call is occurring
            radDropDownList1.SelectedIdex = 5; // radDropDownList1.SelectedIdex= 5; when we set Datasource the recursive call is occurring

}

public void fillIndustryProcess1()
        {
            try
            {
                System.Data.DataTable dt = new System.Data.DataTable();
                if (dt.Columns.Count > 0)
                    {
                        dt.Columns.Add("Industry", typeof(string));
                        dt.Columns.Add("ID", typeof(int));
                        dt.Rows.Add("BGL-0", 0);
                        dt.Rows.Add("BGL-1", 1);
                        dt.Rows.Add("BGL-2", 2);
                        dt.Rows.Add("BGL-3", 3);
                        dt.Rows.Add("BGL-4", 4);
                        radDropDownList1.DisplayMember = "Industry";
                        radDropDownList1.ValueMember = "ID";
                    }
                radDropDownList1.DataSource = dt;// Recursive call occurs
                radDropDownList1.SelectedIndex = 0;/ Recursive call occurs
            }
            catch (System.ComponentModel.Win32Exception ex)
            {
                throw ex;
            }
        }

Old Forums in which , Telerik team fixed the RadDropDownList .SelectedValue.

Telerick version 2023.1.314 RadDropDownList controls throwing StackoverflowException when migrating visual studio 2010 to 2022 in UI for WinForms | Telerik Forums 

Previous forums in which , Telerik team yet to fix for RadDropDownList.Datasource.

Telerick version 2024.1.130.48, RadDropDownList controls throwing StackoverflowException when migrating visual studio 2010 to 2022 in UI for WinForms | Telerik Forums

Thanks,

Maheswari